Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — PREFIX/300

ZIP codes starting with 300

ZIP codes
89
States
GA
Largest city
Lawrenceville, GA
Population
2,557,774

The first three digits of a ZIP code identify a sectional center facility — the postal processing plant that sorts mail for the area. It is a mail-routing grouping, not an administrative boundary.

Every ZIP code in 300xx

ZIP codes starting with 300
ZIP City Type Population Median income Median home
30002 Avondale Estates , GA Standard 5,225 $89,750 $531,900
30003 Norcross , GA No street area — — —
30004 Alpharetta , GA Standard 68,707 $156,100 $657,700
30005 Alpharetta , GA Standard 41,836 $176,957 $636,300
30006 Marietta , GA No street area — — —
30007 Marietta , GA No street area — — —
30008 Marietta , GA Standard 35,547 $74,877 $307,600
30009 Alpharetta , GA Standard 21,095 $126,510 $640,500
30010 Norcross , GA No street area — — —
30011 Auburn , GA Standard 21,624 $86,402 $328,000
30012 Conyers , GA Standard 34,506 $66,153 $268,100
30013 Conyers , GA Standard 28,297 $74,691 $308,400
30014 Covington , GA Standard 41,425 $72,254 $293,400
30015 Covington , GA No street area — — —
30016 Covington , GA Standard 62,968 $79,527 $244,000
30017 Grayson , GA Standard 26,620 $99,917 $408,400
30018 Jersey , GA Standard 104 — $326,200
30019 Dacula , GA Standard 51,162 $116,583 $440,700
30021 Clarkston , GA Standard 27,781 $52,278 $275,400
30022 Alpharetta , GA Standard 64,546 $153,294 $635,300
30023 Alpharetta , GA No street area — — —
30024 Suwanee , GA Standard 88,067 $143,879 $551,000
30025 Social Circle , GA Standard 11,182 $95,757 $322,100
30026 North Metro , GA No street area — — —
30028 Cumming , GA Standard 38,433 $138,011 $470,800
30029 North Metro , GA No street area — — —
30030 Decatur , GA Standard 31,756 $126,830 $631,500
30031 Decatur , GA No street area — — —
30032 Decatur , GA Standard 42,948 $62,765 $273,600
30033 Decatur , GA Standard 31,310 $111,616 $455,300
30034 Decatur , GA Standard 41,847 $63,517 $251,400
30035 Decatur , GA Standard 21,569 $66,799 $244,200
30036 Decatur , GA No street area — — —
30037 Decatur , GA No street area — — —
30038 Lithonia , GA Standard 43,776 $73,694 $247,000
30039 Snellville , GA Standard 52,783 $93,701 $319,700
30040 Cumming , GA Standard 82,532 $137,211 $526,100
30041 Cumming , GA Standard 77,664 $152,564 $574,300
30042 Lawrenceville , GA No street area — — —
30043 Lawrenceville , GA Standard 87,929 $94,096 $377,500
30044 Lawrenceville , GA Standard 101,475 $77,321 $329,600
30045 Lawrenceville , GA Standard 44,993 $104,350 $377,800
30046 Lawrenceville , GA Standard 41,850 $67,268 $339,800
30047 Lilburn , GA Standard 70,121 $88,652 $367,300
30048 Lilburn , GA No street area — — —
30049 Lawrenceville , GA No street area — — —
30052 Loganville , GA Standard 79,811 $93,764 $357,500
30054 Oxford , GA Standard 10,730 $76,427 $318,200
30055 Mansfield , GA Standard 3,800 $84,760 $291,900
30056 Newborn , GA Standard 2,344 $68,494 $306,000
30058 Lithonia , GA Standard 62,614 $61,684 $249,500
30060 Marietta , GA Standard 38,499 $67,510 $316,000
30061 Marietta , GA No street area — — —
30062 Marietta , GA Standard 62,284 $132,631 $491,200
30063 Marietta , GA No street area — — —
30064 Marietta , GA Standard 52,125 $122,195 $466,700
30065 Marietta , GA No street area — — —
30066 Marietta , GA Standard 61,761 $116,074 $403,200
30067 Marietta , GA Standard 47,271 $83,568 $445,900
30068 Marietta , GA Standard 33,882 $150,101 $599,400
30069 Marietta , GA No street area — — —
30070 Porterdale , GA Standard 64 $59,583 $213,900
30071 Norcross , GA Standard 25,830 $64,515 $369,800
30072 Pine Lake , GA Standard 800 $78,750 $310,000
30074 Redan , GA No street area — — —
30075 Roswell , GA Standard 56,263 $157,335 $611,500
30076 Roswell , GA Standard 46,054 $118,170 $489,700
30077 Roswell , GA No street area — — —
30078 Snellville , GA Standard 41,597 $98,257 $353,200
30079 Scottdale , GA Standard 4,831 $82,500 $347,700
30080 Smyrna , GA Standard 53,316 $91,957 $450,400
30081 Smyrna , GA No street area — — —
30082 Smyrna , GA Standard 27,296 $120,372 $438,700
30083 Stone Mountain , GA Standard 62,724 $55,307 $242,000
30084 Tucker , GA Standard 38,242 $81,304 $360,500
30085 Tucker , GA No street area — — —
30086 Stone Mountain , GA No street area — — —
30087 Stone Mountain , GA Standard 38,977 $96,491 $348,000
30088 Stone Mountain , GA Standard 29,240 $70,325 $238,700
30090 Marietta , GA Standard 0 — —
30091 Norcross , GA No street area — — —
30092 Peachtree Corners , GA Standard 36,992 $79,309 $486,800
30093 Norcross , GA Standard 46,410 $48,404 $265,700
30094 Conyers , GA Standard 33,731 $88,530 $296,800
30095 Duluth , GA No street area — — —
30096 Duluth , GA Standard 71,732 $74,656 $375,200
30097 Duluth , GA Standard 46,876 $124,890 $625,100
30098 Duluth , GA No street area — — —
30099 Duluth , GA No street area — — —

Cite this page

zipcodes.pro. “ZIP codes starting with 300.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/300

Underlying data is public domain or openly licensed — sources, vintages and licences.